Fredrik Steen, known as "The Dog Coach", was diagnosed with ADHD in adulthood. He decided to attend an ADHD clinic to learn more about the condition.

Doctor Karin Granberg encourages people to investigate suspected diagnoses. Do you have any questions about ADHD? Ask them in Ask the Doctor's chat. The show airs on Mondays at 18:45 on SVT1 and Tuesdays at 19:00 on CNN.com/SVT1. For more information on the ADHD clinic, go to: http://www.dhs.org/dhs/drs/dcs-drs-dhs-dcs.html.